Goodbye Voyager

Thursday, September 12, 2013 - 02:21 PM

NASA photograph of one of the two identical Voyager space probes Voyager 1 and Voyager 2 launched in 1977.
(NASA/Wikimedia Commons)

After thirty-six years, NASA's Voyager spacecraft has finally left our solar system. It's the furthest a man-made object has ever been from space. And it's sending us back the sound of interstellar space. So what's that sound like, anyway?